Oh, to be a fly on the wall. Such is the sentiment provoked by Ethan Russell's photographs of the Rolling Stones' infamous 1969 US tour, now exhibiting at Proud Central. Russell was a member of the group's entourage, and he documented seemingly every moment of the tour — shots range from a quiet band breakfast in a sun-drenched Californian kitchen to Mick Jagger belting out his anthems onstage in polished black and white. Proud, known for its rock-themed exhibitions, may not be exploring new territory here, but you can't get much cooler than Jagger in the '60s.